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Slutty Brownies Recipe

4.9 from 108 reviews

Slutty Brownies are a decadent layered dessert combining a soft chocolate chip cookie base, a crunchy Oreo cookie center, and a rich, fudgy brownie topping. This indulgent treat offers a perfect balance of textures and chocolatey flavors, baked together in a single pan for an irresistible and crowd-pleasing dessert.

Ingredients

Scale

Chocolate Chip Cookie Layer

  • 3/4 cup unsalted butter (168 grams), softened
  • 1/2 cup brown sugar (105 grams)
  • 1/2 cup white sugar (100 grams)
  • 1 large egg
  • 1 large egg yolk (discard the white)
  • 1 teaspoon vanilla extract
  • 1 1/2 cups all-purpose flour (188 grams)
  • 1/4 teaspoon salt
  • 2/3 cups chocolate chips (120 grams)

Oreo Layer

  • 28 Oreo cookies

Brownie Layer

  • 1/2 cup unsalted butter (112 grams), cubed
  • 6 oz dark chocolate (170 grams), 50-70% or semi-sweet
  • 1 cup granulated sugar (200 grams)
  • 2 large eggs
  • 1/2 cup all-purpose flour (63 grams)
  • 1/4 cup cocoa powder (23 grams)
  • 1/2 teaspoon salt

Instructions

  1. Preheat and Prepare Pan: Preheat your oven to 350°F (180°C). Lightly grease a 9×13 inch (23×33 cm) baking pan, then line it with parchment paper leaving an overhang on the sides for easy removal. Greasing first helps the paper adhere better.
  2. Make Chocolate Chip Cookie Layer: In a large bowl, beat together softened butter, brown sugar, and white sugar until fully combined. Add in the egg, the additional egg yolk (discard the white), and vanilla extract, mixing well. With the mixer on low, incorporate the flour and salt just until combined. Turn off mixer and fold in chocolate chips with a spatula. Spread this dough evenly into the prepared pan, smoothing the top.
  3. Arrange Oreo Layer: Place Oreo cookies directly on top of the cookie dough, pressing them down slightly. Arrange in rows to cover the entire cookie dough surface completely, including halves if needed.
  4. Prepare Brownie Batter: Chop the dark chocolate finely and place it with cubed butter in a heatproof bowl. Microwave at medium power in 45-second intervals, stirring between each until fully melted and smooth. Allow to cool for about 5 minutes. Whisk in the granulated sugar and eggs thoroughly. Sift together the flour, cocoa powder, and salt, then gently whisk these dry ingredients into the chocolate mixture until just incorporated.
  5. Assemble Brownie Layer: Drop spoonfuls of the brownie batter evenly over the Oreo layer across the pan. Spread the batter gently and evenly using a spatula, taking care not to disturb the Oreo layer beneath.
  6. Bake: Bake in the preheated oven for 37-45 minutes, until a toothpick inserted near the center comes out mostly clean or with a few moist crumbs. Baking time depends on your oven and preferred brownie texture.
  7. Cool and Serve: Allow the brownies to cool fully for at least 4 hours before slicing, using the parchment overhang to lift them out of the pan. Store leftovers in an airtight container at room temperature for up to 4 days.

Notes

  • Pan Sizes: You can halve the recipe and bake in an 8×8 inch (20×20 cm) pan; reduce bake time to about 32-37 minutes. When halving, use one whole large egg for the cookie dough layer. Avoid making a half batch in a 9×9 inch pans due to insufficient batter.
  • Chocolate Chips: Adding extra chocolate chips is not recommended as it complicates slicing the brownies.
  • Dark Chocolate: Use 50% dark chocolate for balanced flavor and richness; avoid chocolates over 70% cocoa. Semi-sweet chocolate works well too.
  • Storage: Keep brownies in an airtight container at room temperature for up to 4 days.
  • Recipe Update: Recipe was adjusted in May 2023 to reduce thickness and baking time for even cooking and to prevent overly browned tops.

Keywords: Slutty Brownies, layered brownies, chocolate chip cookie brownies, Oreo brownies, fudgy brownies, chocolate dessert